Automatic co-axial chronograph certified chronometer, Model 231.10.44.52.06.001, calibre 3603, 37 jewel movement. PRICE USD 2800 Stainless steel case 44 mm in diameter. Domed scratch-resistant sapphire crystal with anti-reflective treatment. Exhibition sapphire crystal caseback. Water resistant to 150m/500ft. Linear grey dial, with three black chronograph sub dials - 60-second, 30-minute, and 12-hours. Red arrow GMT hand, date window between 4 and 5. Brushed stainless steel bracelet with push button deployant clasp. Excellent condition, with only some tiny marks on the inner edge of the bezel between 24 and 2, and micro marks on the case back. Otherwise case and bracelet are unmarked. Original Omega mahogany colour timber case and outer case, with operating instructions manual but no cards. Serviced by my Omega trained watchmaker when I bought it five years ago, and has not been worn since. FREE POSTAGE via International Express Post, with tracking and signature required. PLEASE NOTE THAT I WILL NOT ACCEPT BUYERS WITHOUT ESTABLISHED FORUM PRESENCE. IF YOU LIVE IN A COUNTRY WITH A BAD POSTAGE SECURITY RECORD, I AM SORRY BUT I WILL NOT POST TO YOU. PM ME IF YOU ARE IN DOUBT.